I never herd of it freezing, do you have something called T4M installed?

Yeah I have it my friend dosen't but the thing is that he can still play the map solo idk if it's just his crappy computer which is a windows vista but we've got co op to work on another few older maps but when we tried on maps like this and cph it would boot me out of the loading screen and his game would freeze

Hey I made a review and impressions on your map really loved it! 
If you want to see it here's the link: https://www.youtube.com/watch?v=nfNAyQo3YOE&feature=youtu.be

Would be helpful if you explained in detail what happens. Can't really help "it never works."

so basically every time I attempt to play the map co op it freezes and I end up being kicked from the game but my friend's game freezes permanently and is forced to open task manager. We've both tried reinstalling and nothing changes.  We can both run it solo without a problem but co op doesn't work for whatever reason

Amazing map but everytime I try to play with a friend it never works. I downloaded the map off the manager if that makes a difference.